Thank You for Choosing the SW915 Digital Audio Travel Partner from Amplivox Portable Sound Systems. We Are Excited in Introducin

Total Page:16

File Type:pdf, Size:1020Kb

Thank You for Choosing the SW915 Digital Audio Travel Partner from Amplivox Portable Sound Systems. We Are Excited in Introducin Part #: N011-0039 rounded corners SW915 LABEL Color: PMS 300, black, white, Size: 7.32” x 1.27” NEED HELP? CALL 800-267-5486 OR 847-498-9000 EMAIL: CUSTOMERSERVICE@ AMPLI.COM Thank you for choosing the SW915 Digital Audio Travel Partner USER GUIDE from AmpliVox Portable Sound Systems. We are TABLE OF CONTENTS .........................................................1 excited in introducing a “leap forward” in portable sound GettIng StaRteD/QUICK SetUP ...................................2 systems with the incorporation of a fully digital amplifier ContRol Panel FUnctIons ..........................................3 system along with an industry leading remote control CONTROLS / INDICATORS ................................................4 operation. Our system combines flexibility with functionality. AUDIO FUnctIons & ADJUstMent ...............................4 Please refer to this user guide as you enjoy the unique INPUTS / OUTPUTS .............................................................5 REMOTE CONTROL ......................................................... 6-7 capabilities of another quality product from AmpliVox WIRELESS MIC ...................................................................8 Portable Sound Systems. As always, you can reach us at CD PLAYER ..........................................................................9 800-267-5486, Monday - Friday 8am - 6pm CST. OPTIONAL EQUIPMENT DIGItal RecoRDER/PlayeR .....................................10 Cassette RecoRDER/PlayeR .................................10 AMPLIVOX PORtable soUND systeMS PH. 800-267-5486 FX. 800-26705489 Made in USA TROUblesHootIng .........................................................11 www.AMPLI.coM [email protected] SW915 DIGITAL AUDIO TRAVEL PARTNER 1 GETTING STARTED/QUICK SETUP (ALSO PRINTED ON BATTERY COVER) 1. Power unit on with rocker switch. The display will light with MASTER VOLUME indicated. Display will go black after one minute’s inactivity to preserve battery power. Display will illuminate with a press of any button. 2. Use the remote or the UP and DN buttons on the control panel, to select a function. 3 To change the level of a selected function, press the ADJUST button. ADJ will appear on the display. Press UP or DN button to obtain desired level, then press SAVE. 4. Use UP and DN buttons to cycle through BASS, TREBLE, DUCKING, REVERB, VOICE, and all VOLUME controls; then ADJUST and press SAVE. 5. UHF Wireless MIC - To turn receiver on - Press and hold the SET button for about two seconds. The current channel will flash three times quickly; then the system will begin to scan for the next open channel. When it finds an open channel, it will flash the open channel three times and then set the channel. To turn transmitter on - Before turning on the transmitter, use the provided screwdriver to set the transmitter channel selector switches to the same number that is displayed on the receiver. Select channels 1-8. 6. BATT STAT indicator - Red = no battery power, Yellow = 1 hour left. Charge battery overnight for best results. NEED HELP? If you need further assistance, please call 1-800-267-5486, CALL 800-267-5486 8am-6pm M-F CST. EMAIL: CUSTOMERSERVICE@ PLEASE NOTE: THE REMOTE DOES NOT TURN THE UNIT ON OR OFF. AMPLI.COM YOU MUST DO THAT ON THE CONTROL PANEL IMPORTANT SAFETY INSTRUCTIONS ATTENTION: ALL SAFETY AND OPERATING INSTRUCTIONS SHOULD BE READ OBJECT & LIQUID ENTRY - CARE SHOULD BE TAKEN SO THAT OBJECTS DO BEFORE OPERATING APPLIANCE. ALL OPERATING AND USE INSTRUCTIONS NOT FALL AND LIQUIDS ARE NOT SPILLED INTO THE ENCLOSURE THROUGH SHOULD BE FOLLOWED WHEN OPERATING THE APPLIANCE. HEED AND OPENINGS. ADHERE TO ALL WARNINGS ON THE APPLIANCE AND IN THE OPERATING DAMAGE REQUIRING SERVICE - THE APPLIANCE SHOULD BE SERVICED INSTRUCTIONS. RETAIN ALL SAFETY AND OPERATING INSTRUCTIONS FOR BY QUALIFIED SERVICE PERSONNEL WHEN: (A) THE POWER SUPPLY CORD OR FUTURE REFERENCE. THE PLUG HAS BEEN DAMAGED (B) OBJECTS HAVE FALLEN OR LIQUID HAS WATER & MOISTURE - DO NOT USE THE APPLIANCE NEAR WATER; IE. BEEN SPILLED INTO THE APPLIANCE (C) THE APPLIANCE HAS BEEN EXPOSED BATHTUB, WASHBOWL, KITCHEN SINK, LAUNDRY TUB, WET BASEMENT OR TO RAIN (D) THE APPLIANCE DOES NOT APPEAR TO BE OPERATING NORMALLY SWIMMING POOL. OR EXHIBITS A MARKED CHANGE IN PERFORMANCE (E) THE APPLIANCE HAS HEAT - SITUATE THE APPLIANCE AWAY FROM HEAT SOURCES SUCH AS BEEN DROPPED OR THE ENCLOSURE DAMAGED. RADIATORS, HEAT REGISTERS, STOVES OR OTHER APPLIANCES (INCLUDING SERVICING - THE USER SHOULD NOT ATTEMPT TO SERVICE THE APPLIANCE AMPLIFIERS) THAT PRODUCE HEAT. BEYOND THAT DESCRIBED IN THE OPERATING INSTRUCTIONS. ALL OTHER POWER SOURCES - CONNECT THE APPLIANCE ONLY TO A POWER SUPPLY SERVICING REFER TO A QUALIFIED SERVICE PERSONNEL. TYPE DESCRIBED IN THE OPERATING INSTR-UCTIONS OR MARKED ON THE APPLIANCE. GROUNDING OR POLARIZATION - PRECAUTIONS SHOULD BE TAKEN SO THAT THE GROUNDING OR POLARIZATION MEANS OF THE APPLIANCE ARE PRODUCT PRICES, FEATURES, SPECIFICATIONS AND NOT DEFEATED. POWER CORD PROTECTION - POWER SUPPLY CORDS SHOULD AVAILABILITY ARE SUBJECT TO CHANGE WITHOUT NOTICE. BE ROUTED SO THAT THEY ARE NOT LIKELY TO BE WALKED ON OR PINCHED BY ITEMS PLACED UPON OR AGAINST THEM, PAYING PARTICULAR ATTENTION TO CORDS AT PLUGS, CONVENIENCE RECEPTACLES, AND THE POINT WHERE THEY EXIT FROM THE APPLIANCE. SW915 DIGITAL AUDIO TRAVEL PARTNER 2 CONTROL PANEL NEED HELP? CALL 800-267-5486 OR 847-498-9000 PA RTNER EMAIL: CUSTOMERSERVICE@ AMPLI.COM WIRELESS MICROPHONE RECEIVER CD PLAYER / RECORDER CASSETTE PITCH CONTROL (OPTIONAL EQUIPMENT) 3 ADDTITONAL SLOTS FOR OPTIONAL EQUIPMENT: CASSETTE RECORDER/PLAYER, DIGITAL RECORDER/PLAYER OR WIRELESS MICROPHONE RECEIVER INDICATOR LIGHTS: POWER ***** BATTERY STATUS # OVERLOAD A L POWER RCA AUXILIARY U X BATT STAT INFORMATION DISPLAY INPUTS R OVERLOAD Turns off after 1 minute of inactivity to save battery. Comes on with touching * USB INPUT USB SELECT IN DN UP SAVE ADJUST any of the 4 buttons below display (DN, ** MINI JACK INPUTS UP, SAVE, ADJUST) LINE OUT IN *** XLR/COMBO JACKS AUDIO CONTROL BUTTONS - USED TO SET ALL AUDIO FUNCTIONS CH. 1 CH. 2 CH. 3 POWER POWER SWITCH QUICK SET UP GUIDE 1. Power unit on with rocker switch. The display will light with MASTER VOLUME indicated. Display will go black after one minute’s inactivity to preserve battery power. Display will illuminate with a press of any button. CHARGE/AC ON 2. Use the remote or the UP and DN buttons on the control panel, to select a function. 3. To change the level of a selected function, press the ADJUST button. ADJ will appear on the INDICATOR LIGHT FOR display. Press UP or DN button to obtain desired level, then press SAVE. LINE IN / LINE OUT ## AC OR POWER 25 AMP 4. Use UP and DN buttons to cycle through BASS, TREBLE, DUCKING, REVERB, VOICE, and all PHONE JACKS (1/4") CIRCUIT BREAKER VOLUME controls; then ADJUST and press SAVE. 5. UHF Wireless MIC - To turn receiver on - Press and hold the SET button for about two seconds. The current channel will flash three times quickly; then the system will begin to scan for the *** XLR/COMBO JACKS next open channel. When it finds an open channel, it will flash the open channel three times and then set the channel. 110/220 VAC To turn transmitter on - Before turning on the transmitter, use the provided screwdriver to set AUTO SWITCHING the transmitter channel selector switches to the same number that is displayed on the receiver. Select channels 1-8. 6. BATT STAT indicator - Red = no battery power, Yellow = 1 hour left. Charge battery overnight AC POWER JACK WITH for best results. BUILT-IN LINE FUSE Please refer to the owners manual for complete instructions. HOLDER Instructions are also available on www.ampli.com. If you need further assistance please call 1-800-267-5486, 8am-6pm M-F CST. WWW.AMPLI.COM BATTERY PANEL MADE IN THE USA USER ACCESSIBLE Quick Set Up Instructions are on page 2 * USB In: Computer can connect here to allow audio files on computer to be played. ** Mini Jack Inputs: To connect devices as MP3 players, portable tape and CD players or any other audio device that has a 1/8-in. output. *** XLR/Combo Jacks: To connect balanced or unbalanced microphones that have either XLR or phone plug connectors. **** AC Power Jack: Either 110 or 220 volts can be used WITHOUT needing to move a switch; as the power supply does this action. ***** Battery Status Light: Red = No battery power, Yellow = 1 hour left of battery power. For best results – charge battery overnight. # Overload light: Lights up when volume is turned up too far and could cause audible distortion. ## ¼-in. Phone Jacks: Can be used for outboard processors, musical instruments and recorders. SW915 DIGITAL AUDIO TRAVEL PARTNER 3 CONTROLS AND INDICATORS: ON-OFF SWITCH: When power switch is in the ON position, the BATTERY STATUS LIGHT will be illuminated. The color of the LIGHT indicates the condition of the battery. Yellow – battery low, recharge immediately Red – battery must be recharged before use To charge the batteries, connect the unit to 110VAC using the supplied power cord. The red CHARGER ON LED will be illuminated indicating battery is charging. The batteries will charge when unit is operating with AC power, HOWEVER the unit will charge faster with the power switch in the “off” position. MICROPHONE VOLUME: THE SW915 MUST BE PLUGGED IN AND CHARGING WHEN NOT IN USE There are three microphone input channels, (Channels 1, 2 & 3 on the TO MAXIMIZE BATTERY LIFE. RECHARGING THE UNIT ONLY WHEN Control Panel) and each channel has individual volume adjustment THE BATTERY STATUS LIGHT IS YELLOW OR RED WILL SHORTEN THE controls. USEFUL LIFE OF THE BATTERIES. VOICE/MUSIC: Using the remote, press the V/M button to toggle between voice or MASTER VOLUME: music. For speech, it provides a midrange boost for better sound This is the master volume control for the system. projection when in the VOICE position. This selection can also be TREBLE: performed without use of the remote. Use the up or dwn buttons just This control cuts or boosts the treble level. below the display on the Partner to scroll to the voice/music selection. BASS: Use the Adjust button to toggle to either Voice or Music.
Recommended publications
  • Digital Audio Basics
    INTRODUCTION TO DIGITAL AUDIO This updated guide has been adapted from the full article at http://www.itrainonline.org to incorporate new hardware and software terms. Types of audio files There are two most important parameters you will be thinking about when working with digital audio: sound quality and audio file size. Sound quality will be your major concern if you want to broadcast your programme on FM. Incidentally, the size of an audio file influences your computer performance – big audio files take up a lot of hard disc space and use a lot of processor power when played back. These two parameters are interdependent – the better the sound quality, the bigger the file size, which was a big challenge for those who needed to produce small audio files, but didn’t want to compromise the sound quality. That is why people and companies tried to create digital formats that would maintain the quality of the original audio, while reducing its size. Which brings us to the most common audio formats you will come across: wav and MP3. wav files Wav files are proprietary Microsoft format and are probably the simplest of the common formats for storing audio samples. Unlike MP3 and other compressed formats, wavs store samples "in the raw" where no pre-processing is required other that formatting of the data. Therefore, because they store raw audio, their size can be many megabytes, and much bigger than MP3. The quality of a wav file maintains the quality of the original. Which means that if an interview is recorded in the high sound quality, the wav file will be also high quality.
    [Show full text]
  • An Review of Fully Digital Audio Class D Amplifiers Topologies Rémy Cellier, Gaël Pillonnet, Angelo Nagari, Nacer Abouchi
    An review of fully digital audio class D amplifiers topologies Rémy Cellier, Gaël Pillonnet, Angelo Nagari, Nacer Abouchi To cite this version: Rémy Cellier, Gaël Pillonnet, Angelo Nagari, Nacer Abouchi. An review of fully digital audio class D amplifiers topologies. IEEE North-East Workshop on Circuits and Systems, IEEE, 2009, Toulouse, France. pp.4, 10.1109/NEWCAS.2009.5290459. hal-01103684 HAL Id: hal-01103684 https://hal.archives-ouvertes.fr/hal-01103684 Submitted on 15 Jan 2015 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. An Review of Fully Digital Audio Class D Amplifiers topologies Rémy Cellier 1,2 , Gaël Pillonnet 1, Angelo Nagari 2 and Nacer Abouchi 1 1: Institut des Nanotechnologie de Lyon – CPE Lyon, 43 bd du 11 novembre 1918, 69100 Villeurbanne, France, [email protected], [email protected], [email protected] 2: STMicroelectronics Wireless, 12 rue Paul Horowitz, 38000 Grenoble, France, [email protected], [email protected] Abstract – Class D Amplifiers are widely used in portable realized. Finally control solutions are proposed to increase the systems such as mobile phones to achieve high efficiency. This linearity of such systems and to correct errors introduced by paper presents topologies of full digital class D amplifiers in order the power stage.
    [Show full text]
  • Chapter 3: "Transferring Vinyl Lps (And Other Legacy Media) To
    3 TRANSFERRINGVINYLLPS(AND OTHERLEGACYMEDIA)TOCD A great way to preserve and enjoy old recordings is to transfer them from any legacy medium—vinyl LPs, cassette tapes, reel-to-reel tapes, vintage 78s, videocassettes, even eight-track tapes—to CD. Or you can transfer them to a hard drive, solid-state drive, or whatever digital storage medium you prefer. Transferring phonograph records to CD is in demand, and you might even be able to get a nice sideline going doing this. A lot of people are still hanging on to their record collections but are afraid to enjoy them because LPs are fragile. A lot of great albums have never been released on commer- cial CDs, or the modern CD remasters are not done well. Some people sim- ply prefer the sound of their old records. Although you can copy any analog media and convert it to any digital audio format, in this chapter we’ll talk mostly about transferring vinyl record albums and singles to CDs. Once you have converted your old analog media to a digital format, Audacity has a number of tools for cleaning up the sound quality. You may not always be able to perform perfect restorations, but you can reduce hiss, clicks, pops, and other defects to quite tolerable levels. You can also customize dynamic range compression to suit your own needs, which is a nice thing because on modern popular CDs, dynamic range com- pression is abused to where it spoils the music. Even if they did it well, it might not be right for you, so Audacity lets you do it your way.
    [Show full text]
  • Chapter 10 • Digital Audio Recording Devices And
    Chapter 10 1 Digital Audio Recording Devices and Media section page 1001 Definitions ................................................274 1002 Incorporation of copying controls ..............................276 1003 Obligation to make royalty payments ...........................277 1004 Royalty payments . 278 1005 Deposit of royalty payments and deduction of expenses . 279 1006 Entitlement to royalty payments . 279 1007 Procedures for distributing royalty payments . 281 1008 Prohibition on certain infringement actions ......................282 1009 Civil remedies ..............................................282 1010 Determination of certain disputes . 284 § 1001 Digital Audio Recording Devices and Media subchapter a — defiNitioNs § 1001 · Definitions As used in this chapter, the following terms have the following meanings: (1) A “digital audio copied recording” is a reproduction in a digital re- cording format of a digital musical recording, whether that reproduction is made directly from another digital musical recording or indirectly from a transmission. (2) A “digital audio interface device” is any machine or device that is de- signed specifically to communicate digital audio information and related interface data to a digital audio recording device through a nonprofessional interface. (3) A “digital audio recording device” is any machine or device of a type commonly distributed to individuals for use by individuals, whether or not included with or as part of some other machine or device, the digital record- ing function of which is designed or marketed for the primary purpose of, and that is capable of, making a digital audio copied recording for private use, except for— (A) professional model products, and (B) dictation machines, answering machines, and other audio record- ing equipment that is designed and marketed primarily for the creation of sound recordings resulting from the fixation of nonmusical sounds.
    [Show full text]
  • Compact Disc Minidisc Deck
    4-245-486-12(1) Compact Disc MiniDisc Deck Operating Instructions MXD-D400 ©2003 Sony Corporation Owner’s Record WARNING The model and serial numbers are located on the rear of the unit. Record the serial number in the space To prevent fire or shock hazard, do not provided below. Refer to them whenever you call upon expose the unit to rain or moisture. your Sony dealer regarding this product. To prevent fire, do not cover the ventilation of the Model No. MXD-D400 Seral No. apparatus with news papers, table-cloths, curtains, etc. And don’t place lighted candles on the apparatus. Caution To prevent fire or shock hazard, do not place objects The use of optical instruments with this product will filled with liquids, such as vases, on the apparatus increase eye hazard. This appliance is WARNING classified as a CLASS 1 This equipment has been tested and found to comply LASER product. This with the limits for a Class B digital device, pursuant to label is located on the Part 15 of the FCC Rules. These limits are designed to rear exterior. provide reasonable protection against harmful interference in a residential installation. This The following caution label is located inside the equipment generates, uses, and can radiate radio apparatus. frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: – Reorient or relocate the receiving antenna.
    [Show full text]
  • “Knowing Is Seeing”: the Digital Audio Workstation and the Visualization of Sound
    “KNOWING IS SEEING”: THE DIGITAL AUDIO WORKSTATION AND THE VISUALIZATION OF SOUND IAN MACCHIUSI A DISSERTATION SUBMITTED TO THE FACULTY OF GRADUATE STUDIES IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY GRADUATE PROGRAM IN MUSIC YORK UNIVERSITY TORONTO, ONTARIO September 2017 © Ian Macchiusi, 2017 ii Abstract The computer’s visual representation of sound has revolutionized the creation of music through the interface of the Digital Audio Workstation software (DAW). With the rise of DAW- based composition in popular music styles, many artists’ sole experience of musical creation is through the computer screen. I assert that the particular sonic visualizations of the DAW propagate certain assumptions about music, influencing aesthetics and adding new visually- based parameters to the creative process. I believe many of these new parameters are greatly indebted to the visual structures, interactional dictates and standardizations (such as the office metaphor depicted by operating systems such as Apple’s OS and Microsoft’s Windows) of the Graphical User Interface (GUI). Whether manipulating text, video or audio, a user’s interaction with the GUI is usually structured in the same manner—clicking on windows, icons and menus with a mouse-driven cursor. Focussing on the dialogs from the Reddit communities of Making hip-hop and EDM production, DAW user manuals, as well as interface design guidebooks, this dissertation will address the ways these visualizations and methods of working affect the workflow, composition style and musical conceptions of DAW-based producers. iii Dedication To Ba, Dadas and Mary, for all your love and support. iv Table of Contents Abstract ..................................................................................................................
    [Show full text]
  • Magneto-Optical Recording Systems
    10.3 MiniDisc 10.3.1 Introduction and Features of the MiniDisc System The MiniDisc (MD) system, developed by Sony, offers both digital sound and random access features. In addition to these features, the following three types of MiniDiscs have been developed for various applications: Section 10.3 MiniDisc 401 Figure 10.19 Probability of each error length. i Error length (byte) 1. Playback-only MiniDisc for prerecorded music; 2. Recordable MiniDisc allowing up to 74 minutes of recording time; and 3. Hybrid MiniDisc, a combination with premastered and recordable areas. The intrinsic recording technology supporting the recordable MiniDisc is the magnetic field direct overwrite method, applied to a consumer product for the first time in the world. The distinctive features of the MiniDisc are 1. Overwrite function: 2. Maximum 74 min. recording time on a disk only 64mm in diameter, achieved using data compression and high-density recording; 3. Quick random access supported by address information in the wobbled groove; and 4. Disk protection with the cartridge and shutter. Read process Verify process Write process Media production Figure 10.20 Defect management strategies. 402 Chapter 10 Magneto-Optical Recording Systems Moreover, durability and reliability for the recordable MiniDisc have already been proven with data storage media for computer peripherals, such as the magneto optical disk. Figure 10.21 shows the various MD systems. 10.3.2 System Concept and Specifications The specifications of the compact disc (CD) were first proposed in 1982, and are described in the so-called “Red Book.” Since then, the technological developments for both data and recording applications have been specified in the “Yellow Book” and “Orange Book,” respectively.
    [Show full text]
  • Digital Audio Standards
    Digital Audio Standards MINUTES OF THE MEETING OF THE DIGITAL would consider the possibility of using the 45-kHz fre- AUDIO STANDARDS COMMITTEE quency proposed by Heaslett. 1.5 Mr. Willcocks gave the available technical details of Date: 1977 December 1 und 2 some 14 presently-used digital audio systems. He sub- Time: 1830 hours sequently prepared a report containing this information for Place: Snowbird Resort, Salt Lake City, Utah distribution to the committee (see page 56). 1.6 Several members expressed the urgency for sampling Present: Chairman, John G. McKnight (Magnetic Refer- frequency standardization because of the number of digital ence Laboratory); members, Stanley Becker (Scully/ audio recording systems- both studio and consumer Dictaphone); Gregory Boganz (RCA Records); Vic Goh types- now nearing completion and commercial availa- (Victor Company of Japan (JVC)); Thomas Hay (MCI, bility. Inc .); Alastair Heaslett (Ampex Corporation); M. Carlos Kennedy (Ampex Corporation); William Kinghom (Telex 1.7 The committee was unable to find an acceptable single Communications); K. Kimihira (Akai America); Masahiro frequency, given the conflicting requirements of the pres- Kosaka (Wireless Research Lab, Matsushita Elect. Inc. ent TV-compatible proposal, the 3M studio recorder, and Co.); Alfred H. Moris (3M Company); Thomas G. Stoc- the Japanese consumer recorders. The committee asked kham, Jr. (Soundstream, Inc.); Martin Willcocks Messrs. Heaslett, Youngquist and Kosaka each to prepare (Willcocks Research Consultants); James V. White (CBS a report giving details explaining why they chose the Technology Center); Yoshito Yamagudi (Melco Sales Inc. frequency they did, and what penalties the other frequen- Mitsubishi Electric Corp.); Robert J. Youngquist (3M cies discussed would entail.
    [Show full text]
  • Digital Audio Tapes: Their Preservation and Conversion 1 Smithsonian Institution Archives Summer 2010
    Digital Audio Tapes: Their Preservation and Conversion 1 Smithsonian Institution Archives Summer 2010 Digital Audio Tapes: Their Preservation and Conversion Susan Eldridge, Digital Services Intern Overview Digital Audio Tapes (DATs) are 4mm (or 3.81mm) magnetic tape cassettes that store audio information in a digital manner. DATS are visually similar to compact audio cassettes, though approximately half the size, use thinner tapes, and can only be recorded on one side. Developed by Sony in 1987, DATs were quite popular in recording studios and were one of the first digital recording systems to become employed in archives in the late 1980s and 1990s due to their lossless encoding. Commercial use of DATs, on the other hand, never achieved the same success as the machines were expensive and commercial recordings were not available on DAT. Depending on the tape and machine used, DATs allow four different sampling modes: 32 kHz at 12 bits quantization, and 32 kHz, 44.1 kHz, and 48 kHz at 16 bits.1 All support two-channel stereo recording. Some of the later DATs (before being discontinued) could extend the bit-depth to 24 and up to 98 kHz, however, these tapes were likely rarely playable on other models.2 DATs can run between 15 and 180 minutes in length, one again depending on the tape and quality of the sampling. Unlike some other digital media, DATs do not use lossy data compression, which is important in the lossless transferring of a digital source to a DAT. Sony ultimately discontinued the production of DAT machines in 2005.3 Composition A digital magnetic tape is composed of two primary layers: the base film and magnetic layer.
    [Show full text]
  • Designing Practical High Performance Class D Audio Amplifier
    Designing Practical High Performance Class D Audio Amplifier www.irf.com Contents Chapter 1 • Class D Amplifier Introduction Theory of class D operation, Points of design Chapter 2 • The latest Digital Audio MOSFET, DirectFET® MOSFET Importance of layout and packaging Optimized MOSFET for no-heat sinking Chapter 3 • Designing Dead-time and Overload Protection with Digital Audio Gate Driver IC Designing with built-in dead-time generation How to design OCP. Tj estimation. Chapter 4 • Design Example No-heat sink 100W x 6ch compact Class D amplifier www.irf.com Chapter 1 Class D Audio Overview www.irf.com Review: Traditional Class AB Amplifier • Class AB amplifier uses linear regulating transistors Feed back to modulate output voltage. +Vcc • A loss in the regulating transistor in Class AB + - amplifier is proportional to Error amp Bias + the product of the voltage across the device and the current flowing through it. -Vcc η = 30% at temp rise test condition. PC = VCE ⋅ IC Î Independent of device parameter www.irf.com Class D Amplifier Feed back Triangle +VCC Nch Level Shift - Dead Time + COMP Nch Error Amp + -VC C •Class D amplifier employs MOSFETs which are either ON or OFF state. Therefore ideally 100% efficiency can be achieved. •PWM technique is used to express analog audio signals with ON or OFF states in output devices. •A loss in the switching device caused by 1)finite transition speed, 2)ON state resistance and 3)gate charge. PTOTAL = Psw + Pcond + Pgd Î dependent of device parameter Î can be improved further! www.irf.com Basic PWM Operation The output signal of comparator goes high when the sine wave is higher than the sawtooth.
    [Show full text]
  • Intro to Digital Audio & Music Production
    MASTER COURSE OUTLINE A. MUSC 1200 Intro to Digital Audio & Music Production B. COURSE DESCRIPTION: This course provides students hands-on experience working with digital audio recording and MIDI (Musical Instrument Digital Interface) software. Students will learn the basics using current D.A.W. (digital audio workstation) software applications, including basics of audio hardware setup, software configuration, MIDI sequencing, and digital audio recording and processing. Prior music experience is not required. No prerequisites; DIGI 1100 recommended. (3 Cr - 3 lect) C. **Core Theme: Critical Thinking D. MAJOR CONTENT AREAS: MIDI (Musical Instrument Digital Interface) setup and operation: 20% Digital audio recording hardware setup & software operation: 40% Popular Music History: 10% Music theory fundamentals: 10% Music production / performance: 20% 1. Introduction to music elements / fundamentals 2. Introduction to instruments commonly used in popular music 3. Brief history of audio recording technology in the U.S.A. 4. Overview of popular musical styles in the U.S.A. including study of how aesthetic decisions relate to recording technology and cultural values. 5. Hands-on study of Digital Audio Workstation software, including the following core skills a. Setup and troubleshooting hardware, including microphones, digital audio interface, and MIDI keyboard b. Setup and configuring Digital Audio Workstation software c. Recording, importing and editing digital audio and MIDI data d. Configuring and using real-time audio processing plugins e. Configuring and using MIDI software instruments f. Mixing and mastering a song g. Understanding session file architecture and archiving finished sessions 1 A member of Minnesota State E. GOAL TYPES, OBJECTIVES, AND OUTCOMES: GOAL OBJECTIVES OUTCOMES Students will be able to: The student will successfully: **Critical gather factual information and apply it to a 1.
    [Show full text]
  • AXIS T8355 Digital Microphone Digital Microphone with Lossless Interface for Superior Audio
    Datasheet AXIS T8355 Digital Microphone Digital microphone with lossless interface for superior audio AXIS T8355 Digital Microphone is a high-performance, discreet microphone specially designed for best surveillance in large areas. First microphone with an S/PDIF output carrying digital audio signals between the microphone and network product. Thanks to the digital format with lossless transfer of audio signals, electromagnetic immunity is achieved making it ideal for situations where up to 100 m (328 ft) long cables are required. This hemispherical microphone collects sound from every direction, and the quality of the recording is vastly superior to that of the network product’s internal microphone. Powered by the network product, no external supply needed. > Professional audio surveillance > Discreet and compact digital microphone > Support for S/PDIF output > Hemispherical > Flexible installation www.axis.com T10132366/EN/M1.6/1812 AXIS T8355 Digital Microphone Audio Safety Supported Network products with Digital In and Ring Power IEC/EN/UL 60950-1, CE devices Environment IEC/EN 60529 IP65, EN 50581 Frequency range Within 20 Hz - 20 kHz (see graph)a a Dimensions Microphone (LxHxW): 27 x 20 x 20 mm (1.06 x 0.79 x 0.79 in) Sensitivity -30 dB ±3 dB Cable (LxØ): 5 m x 3.1 mm (197 x 0.12 in) Max SPL 130 dB (10% THD)a 3.5 mm plug (Ø): 6.2 mm (0.24 in) SNR 76 dB A-weighted (relative 1 kHz @ 1 Pa, 94 dB SPL)a Weight 90 g (0.20 lb) Directionality Hemispherical Included Installation guide, drill template, white cover, mount bracket, accessories
    [Show full text]